Answer:
- H₂ (g) + 2AgNO₃ (aq) → 2HNO₃ (aq) + 2Ag (s)
Explanation:
1) Word equation:
- Hydrogen gas + silver nitrate → nitric acid + silver
2) Chemical (skeleton) equation:
Include phases but do not balance it (yet). The symbology used is:
- (g) for gas
- (aq) for aqueous solution
- (s) for solid
- H₂ (g) + AgNO₃(aq) → HNO₃ (aq) + Ag (s)
3) Balanced chemical equation:
Add the needed coefficients to make the number of atoms of each kind equal on both sides:
- H₂ (g) + 2AgNO₃ (aq) → 2HNO₃ (aq) + 2Ag (s) ← answer
